Should use request.get_json(silent=True)

[lanecm]

On line 59, I think it would be better to use:

request.get_json(silent=True)

instead of:

request.json

Then you won't get those The browser (or proxy) sent a request that this server could not understand errors.

[adamtheturtle]

.json is now deprecated and raises a warning. See http://flask.pocoo.org/docs/0.11/changelog/:

Deprecated request.json in favour of request.get_json().

[kingname]

I find that if I use

request.get_json(silent=True)

I will get None, but if I use

request.get_json()

I will get the right data.